80812242 has 40 divisors (see below), whose sum is σ = 206950656. Its totient is φ = 23088888.

The previous prime is 80812231. The next prime is 80812243. The reversal of 80812242 is 24221808.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80812243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34498 + ... + 36765.

Almost surely, 2^80812242 is an apocalyptic number.

80812242 is an abundant number, since it is smaller than the sum of its proper divisors (126138414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80812242 is a wasteful number, since it uses less digits than its factorization.

80812242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71284 (or 71275 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 80812242 is about 8989.5629482195. The cubic root of 80812242 is about 432.3402989958.

The spelling of 80812242 in words is "eighty million, eight hundred twelve thousand, two hundred forty-two".